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'''The Yaesu FT-847 Earth Station'''==review==Mike Foubister ZL3TIC has a pretty good review.See: [http://www.uksmg.org/content/ft847.htm Review of the Yaesu FT-847]Other comments:The Yaesu FT-847 and Kenwood TS-2000 are very similar in features.There is no built-in SWR meter, just a "High SWR" indicator.A: No. Although it will not dual receive, it does does have a priority function as another option. The second VFO is transmit only, designed for satellite work.A: No. Although it will not dual receive, it does does have a priority function as another option, which is considered a "dual watch." The second VFO is transmit only, designed for satellite work. Q: Does the FT-847 have true cross-band repeat?<BR>A: No. It claims to, but it can only rebroadcast incoming signal while it cannot allow a remote HT to reply back through it. It is only useful if you want to listen on the HT. ===priority function===Priority Channel Scanning (dual Watch) is possible with the Yaesu FT-897. It allows you to operate on a VFO, Memory channel, or Home channel, while periodically checking a user-defined Priority Memory Channel for activity. If a station is received on the Priority Memory Channel which is strong enough to open the Squelch, the scanning will pause on that station. The Priority feature is available in all operating modes. * When loading memories, remember to reserve Channel #1 for Priority use. Here's how it works: Press the keypad's [5(PRI)] key momentarily to initiate the Priority mode. The FT-847 will continue to operate normally on the current frequency, but every five seconds will switch briefly to Memory Channel #1, looking for activity. If no activity is found, operation will resume on the current frequency. * If activity is found on the Priority Channel (Memory #1), the transceiver will lock on the Priority Channel for a time interval set via Menu #26 * Using PTT will lock it on the priority channel if that's where it was at when you pressed. * Press [VFO/M] or [5(PRI)] key to exit priority channel. ===memory channels===*'''78 general purpose memory channels'''*20 "Smart Search" memory channels (FM only)*10 full duplex satellite memory channels*4 home memory channels*1 quick memory bank channel*24 band stacking registers ===program memory channel===#select frequency and PL tone for channel#Press MCK/W#select available channel with MEM/VFO CH knob#Long Press MCK/W ===erase memory channel===#Press MCK/W#select channel to delete with MEM/VFO CH knob#Press REV#Press MCK/W ===cross band repeater (one-way only)===#press SAT to activate Satellite mode#set xmit freq to sub display#set rec freq to main display#press MENU and select item #41 X RPT set to ON#press MENU ===vfo frequency range scan===You can also do a "programmed" scan. Set Memory Channel L to the lower limit you want to scan and Memory Channel H to the upper limit. Press the PMS button and "LU" will show in the memory channel number position. If you press Scan now, the rig will scan between those limits. Note that the firmware in the rig will round off your L and H values to the next lower 100 kHz. This means that the smallest increment you can scan is 100 kHz.#press ENT and enter the lower frequency limit followed by ENT#Press MCK/W#Turn the MEM/VFO CH dial until "L" is displayed for channel#Long Press MCK/W#press ENT and enter the upper frequency limit followed by ENT#Press MCK/W#Turn the MEM/VFO CH dial until "U" is displayed for channel#Long Press MCK/W#Press the PMS button and "LU" will be displayed for channel#Press SCAN To exit the scan press SCAN again, and press PMS Note that you will now have channels L U in the normal channel sequence. You can delete them or set them to skip. However, if you set them to skip you cannot put the rig into Programmed Scan mode by pressing the PMS key. ===full menu options list===1Display Dimmer Level 2VFO Dial Step Size 3VFO/Mem Ch Step Size (SSB/CW) 4VFO/Mem Ch Step Size (AM) 5VFO/Mem Ch Step Size (FM) 6CW Sidetone/BFO Pitch 7CW Keyer Weight (Dash:Dot ratio) 8CW Sidetone Level 9CW Delay Time (Rx Recovery Time) 10DSP CW Filter Bandwidth 11DSP Noise Reduction Level 12CTCSS Tone Frequency 13DCS Code # 14Auto Rptr Shift (144 MHz) 15Auto Rptr Shift (430 MHz) 16Rptr Shift Magnitude (29 MHz) 17Rptr Shift Magnitude (50 MHz) 18Rptr Shift Magnitude (144 MHz) 19Rptr Shift Magnitude (430 MHz) 20SSB Monitor Audio Level 21"Beep" Tone Pitch 22"Beep" Tone Audio Level 23FM Packet Baud Rate 24Tx Mode Multimeter Readout 25FM Mode Mic Gain 26Scan-Resume Pause Time 27[Lock] Switch Mode 2850 MHz Antenna Port Selection 29Rx Preamp Selection (144 MHz) 30RX Preamp Selection (430 MHz) 31[Tuner] Switch Control Function 32Mic. Up/Dwn Sw. Control Function 33CW Filter Activation 34Satellite Mode TX Meter Function 35Satellite Memory Alpha Labels 36Satellite Auto-Memory Function 37Data-Transfer Baud Rate 38Clear All Memories 39Microprocessor Full Reset 40useless function 41One-Way Cross-Band Repeater Mode 42Menu Expansion (To #90 ~ 96) 90TX DCS Code Inversion 91RX DCS Code Inversion 92TX Carrier Injection Point (USB) 93Rx Carrier Injection Point (LSB) 94Cloning Data Transfer Baud Rate 95Clone Mode "SEND" 96Clone Mode "RECEIVE"==modification====technical=====microphone pinout===[[Image:yaesuft847px02.png]]===modification===MODIFIED SOLDER PAD CONFIGURATION:# IN PLACE - a resistor should already be present here# IN PLACE - a resistor should already be present here# SOLDER BRIDGE - solder a bridge across the pad if a resistor is not present# OPEN - remove resistor if present or leave open# IN PLACE - a resistor should already be present here# OPEN - remove resistor if present or leave openSee: http://www.g1ivg.com/ft847.htm - he has a pictureSee also: http://www.radiomods.co.nz/yaesu/yaesuft847.html===hidden menus===There are special menus on the FT-847. One, documented in the Operating Manual, is accessed by changing Menu #42 EXTEND to ON. Alignment menu - not mentioned in the manual. To access this menu, you need the standard mike with the UP, DOWN, and FAST buttons. Hold down these three buttons simultaneously and turn on the radio using the power switch. This will place you into the alignment menu. Doing this does not cause a reset of your radio.==references and resources==*[http://www.supercontrol.de/cat/ft847faq/ft847faq.htm FAQ for the Yaesu FT-847 transceiver]